Other

Lockheed Martin Corporation

Unisys Corporation

Sperry Corporation

Rosemount Aerospace Limited

Gerald L Brown

Samuel A Meddaugh

David Gordon Hanson

Raymond C Hedin

Travis W Fleck

Dennis L Amundson

Steven H Karban

Kenneth L Graber

Katherine A Splett

Mark Allen Owen

Apparatus and associated methods relate to aligning a taxi-assist camera such that each image frame of real-time video that the camera generates has a standard presentation format. The taxi-assist camera is configured to be mounted on an aircraft and oriented such that each image frame includes both a specific feature of the aircraft and of nearby objects external to the aircraft. The specific feature of the aircraft is detected and a location within the image frame of the specific feature is determined. The determined location within the image frame is compared with a reference location. A transformation operator is generated to transform the image frame such that the specific feature of the aircraft will be located within the image at a location corresponding to the reference location. The transformation operator is then applied to each of the image frames of the real-time video that the camera generates.

Method and system for aligning a taxi-assist camera

A circuit arrangement and method are disclosed for providing a video signal to a video display from a selectable subset of a plurality of digital video data carried on a plurality of video data channels. The digital video data is generated from video signals from a plurality of video sources, and each video channel selectably carries either color or monochrome video data. A processor is configured and arranged to interpret display commands, and a selector circuit is coupled to the processor. The selector circuit is arranged for connection to the plurality of video data channels and selects digital video data from a subset of the channels responsive to an input selection signal from the processor. A video data sequencer is coupled to the selector circuit and decodes color and monochrome video data from the video channels responsive to configuration signals indicating selected data formats for the channels and merges the selected video data into frames of video data. A digital-to-analog converter generates an analog video signal from the frames of video data.

Multi-mode video processor

A window guard is provided for a window which may be removably mounted in a window frame to protect the window from storms. The window includes a window frame having frame members, two of which have holes formed on inwardly facing surfaces. The window guard includes a board sized to fit within the window frame and a brace or mounting mechanism pivotally mounted on the board which cooperates with the window frame holes to mount the window guard in the frame. The mounting mechanism includes a cross-member pivotally secured to the board and rods telescopingly received in the cross-member. The cross-member is made of two elongate pieces which are pivotally connected and which have blind bores formed in their ends which telescopingly receive the rods. The rods can thus telescope to a position in which they extend from the cross-member into the holes formed in the window frame and be retracted to a position in which they do not extend beyond the edges of the board. A screw is provided for each rod to be screwed against the rod to secure the rod in a desired position in the cross-member. Guide brackets are positioned near the edges of the board to provide a guide through which the rods extend.

Window guard

A block replicate magnetic bubble memory organization is disclosed in which a number of storage loops are arranged between write and read tracks. Data in the read track is supplied to a deskewing circuit under the control of one section of an EAPROM so that the deskewing circuit outputs one page at a time, where each bit of the page is derived from a different storage loop, to a buffer and error correcting circuit which supplies corrected information to a data processing system as long as only one error bit has occurred on a page. If an error does occur in a page, the processor which has stored in it information relating to all of the used and unused loops of the system, controls another section of the EAPROM so that the defective loop will be exchanged for a good loop after a predetermined number of failures have occurred for the particular bad loop. The write side of the EAPROM is subsequently updated by the processor or remote processor that utilizes the read-out data. Data which is stored in the buffer and has been corrected by the error correcting circuitry is supplied to the skewing circuit under the control of the write side of the EAPROM so it may be written back into the loops of the bubble memory.

Self-healing bubble memories

A timing generator and verifier is provided in which a PROM stores the timing constants that are employed by the generator. An address counter, which is driven by a clock timer, cycles through an associated portion of the PROM to provide a sequence of output signals which represent timing for a particular mode. If a different mode is selected, the address counter selects a different sequence of output bits. During Normal mode the address counter operates on a cyclic basis driven by a fixed frequency free running master clock. In Verify mode the address counter is stepped by the Host computer. The outputs of the PROM are coupled through a buffer and logic section, where the outputs may be modified before being coupled to an adder which accumulates a checksum based on the outputs of all of the bits for a particular selected timing. The checksum provided by the adder is compared in a comparator with a stored checksum that indicates whether the correct operation of the complex timing cycle for the selected mode has been verified.

Generation and diagnostic verification of complex timing cycles

Growing community of inventors

Savage, MN, United States of America

Gerald L Brown